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Defold In-app purchase extension API documentation
This extension provides functions for making in-app purchases. Supported on iOS, Android (Google Play and Amazon) and Facebook Canvas. On Google Play the extension supports Billing 3.0.
Usage
To use this library in your Defold project, add the following URL to your game.project dependencies:
https://github.com/defold/extension-iap/archive/master.zip
We recommend using a link to a zip file of a specific release.
Source code
The source code is available on GitHub
Differences between supported platforms
Amazon supports two different product types: subscriptions and consumable products.
Google Play and Apple supports three different product types: subscriptions, consumable and non-consumable products.
If you want to simulate non-consumable products on Amazon you need to make sure to not call iap.finish() on the product in question (and make sure to not have enabled Auto Finish Transactions in game.project).
Calls to iap.buy() and iap.set_listener() will return all non-finished purchases on Google Play. (This will not happen on iOS)
The concept of restoring purchases does not exist on Google Play/Amazon. Calls to iap.restore() on iOS will return all purchased products (and have product state set to TRANS_STATE_RESTORED). Calls to iap.restore() on Google Play will return all non-finished purchases (and have product state set to TRANS_STATE_PURCHASED).
API reference
{% include api_ref.md %}